• HTonEpiC from Creative Bioarray are isolated from human normal tonsil tissue.  human tonsil primary cells are cryopreserved at passage one culture and delivered frozen. Each vial contains >5 x 10^5 cells in 1 ml volume. HTonEpiC are characterized by immunofluorescent method with cytokeratine antibodies. HTonEpiC are negative for HIV-1, HBV, HCV, mycoplasma, bacteria, yeast and fungi. HTonEpiC are guaranteed to further culture at the conditions provided by Creative Bioarray. http://www.creative-bioarray.com/Human-Tonsil-Epithelial-Cells-HTEpiC-CSC-7706W-item-1761.htm